Species eastern hop hornbeam
Lime flowers with green leaves, yellow midrib, petiole  and veins,  and brown stems.

eastern hop hornbeam

Ostrya virginiana

Also Known As - ironwood
Eastern hop hornbeam (Ostrya virginiana) is a deciduous tree that is native to the east coast of North America. It grows up to 33 feet tall and can live up to an impressive 250 years. Its bark is silvery in color and is covered in warts, giving it the nickname ‘Ironwood'. The leaves are small, serrated and arranged alternately along the stem and the flowers are yellow and bell-shaped. This tree is an important food source for wildlife, such as squirrels, and the seeds can also be eaten by humans. It makes a great ornamental tree for gardens with its unique colorful bark and delicate foliage.

Cycle:

Perennial

Watering:

Average

Propagation:

Seed Propagation

Hardiness Zone:

3 - 9

Flowers:

Red-brown (male); light green (female) Flowers In Spring

Sun:

Full sun, Part sun/part shade

Soil:

Sandy Loamy Rocky

Fruits:

brown Fruits In Autumn Ready In Fall

Leaf:

Yes

Leaf Color:

green,red,yellow,orange

Growth Rate:

Low

Maintenance:

Low

Thorny:

Yes

Care Level:

Low

watering

Eastern hop hornbeam should be watered moderately, about once every 2 weeks during the active growing season, from spring to mid-autumn. In the winter, water should be reduced to just a few applications when the soil has become completely dry. Be sure to water thoroughly, allowing moisture to penetrate at least a foot into the soil. Avoid over-watering or standing water issues, which can cause root systems to rot.

sunlight

Eastern hop hornbeams, or Ostrya virginiana, require between 4–8 hours of direct sunlight for optimal growth. Sunlight requirements depend on soil type, climate, and water availability. Generally, Eastern hop hornbeams grow best when planted in well-lit, sunny locations with morning and early afternoon sun and some afternoon shade. In warmer climates, they prefer full sun or partial shade. In cooler climates, they need sun for at least half of the day. It is recommended to place Eastern hop hornbeams in locations that receive at least 4 hours of direct sunlight each day.

pruning

Eastern hop hornbeam pruning should take place during the dormant season, typically in winter or early spring before buds swell. Pruning should not involve removing more than 1-third of the plant’s live growths at 1 time, as this can be damaging to the tree. To promote uniform growth and less sprouting, thin out the canopy of branches by removing unwanted, weak or crossing branches. Remove any dead, diseased, or broken limbs. Also, shorten long branches to reduce wind resistance and to reduce the overall size of the tree. Also, any branches or shoots competing with the central leader should be removed in order to promote a single, solid trunk. Pruning at the right time and in the right way will ensure optimal growth and health of the eastern hop hornbeam.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Harvest Fruit

The best time to start harvesting the fruits from Ostrya virginiana is in late summer and early fall, typically from August to October.

Starts Flowering

Eastern hop hornbeam typically starts flowering in April.

Harvest Fruit

The best time to start harvesting the fruits from Ostrya virginiana is in late summer and early fall, typically from August to October.

Hardiness Map